Trap Information Description

Trap Buffer Description

Two parts are included:

Trap message: indicates the character string that describes the trap. It is displayed on a device.
Trap meaning: indicates the meaning of the trap.

Trap Attributes

Table 1 describes trap attributes.

**Table 1** Trap Attribute
Attribute	Description
Alarm or Event	Indicates the trap type, which can be: Alarm Event
Trap Severity	Indicates to what extent the fault affects the performance of the device.
Mnemonic Code	Indicates the digest of trap content for the ease of memorization.
Trap OID	Indicates the object ID defined in the MIB.
Alarm ID	Indicates the alarm ID defined by the network management system (NMS).
Alarm Type	Indicates the type that the fault is related to. communicationsAlarm Indicates that a fault occurs in the process associated with the data transfer. For example, an alarm is generated due to the communication failure between the NEs, between the NE and the OS, or between the OSs. qualityOfServiceAlarm Indicates that the QoS decreases. For example, an alarm is generated due to congestion, performance decrease, high resource occupancy, or bandwidth shortage. processingErrorAlarm Indicates that an error occurs when the software or process handles data. For example, an alarm is generated due to the software error, memory overflow, version mismatch, or abortion of the program. equipmentAlarm Indicates that a fault occurs in physical resources, including power supply, fan, processor, clock, and I/O interfaces. environmentalAlarm Indicates that the environment cannot meet the requirements for the equipment to operate normally. For example, an alarm is generated due to improper temperature, humidity, or ventilation. NOTE: The alarm type is valid only for alarm traps but not event traps.
Raise or Clear	Indicates whether a fault occurs or is rectified: Raise: A fault occurs. Clear: A fault is rectified. None: A fault may occur or be rectified. NOTE: Raise or Clear is valid only for alarm traps but not event traps.
Match trap	Indicates the match trap for a generated or cleared alarm. NOTE: The match trap is valid only for alarm traps but not event traps.

Trap Buffer Parameters

Indicates the parameters included in the trap. Parameters in a trap help in locating the fault and analyzing the trap.

VB

The variable binding (VB) information parameter applies to alarm location and connection to a third-party NMS. The VB information parameter includes:

VB OID
VB Name
VB Index

Impact on the System

Analyzes the impact of this trap on system.

Possible Causes

This part describes the causes for a trap generated by the system.

Procedure

This part describes associated traps to help in finding out the root cause for the trap and the causes for the associated traps.